RFR: 8281470: tools/jar/CreateMissingParentDirectories.java fails with "Should have failed creating jar file"

[Christian Stein]

This PR removes the redundant and failing test-case.
It also removes the test class from the problem list.

Adds additional test-cases using long form option names of `jar`.

-------------

Commit messages:
 - Only assert non-zero exit code on failure
 - 8281470: tools/jar/CreateMissingParentDirectories.java fails with "Should have failed creating jar file"

Changes: https://git.openjdk.java.net/jdk/pull/7397/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=7397&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8281470
  Stats: 11 lines in 2 files changed: 6 ins; 4 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk/pull/7397.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/7397/head:pull/7397

PR: https://git.openjdk.java.net/jdk/pull/7397